PT-2025-37675 · Linux+2 · Linux Kernel+2

Published 2023-02-18 · Updated 2025-10-23 · CVE-2023-53234

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contains a memory leak in the watchdog cdev register function. The issue occurs because put device is not called when cdev device add fails and wdd->id is not equal to 0, leading to memory leaks. The leak is observed in objects allocated during device registration.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2026-03957

CVE-2023-53234

OESA-2025-2468

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 892

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53234.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-53229 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53480 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53220 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50347 · Security Note
• https://git.kernel.org/stable/c/23cc41c3f19c4d858c3708f1c0a06e94958e6c3b · Patch
• https://ubuntu.com/security/CVE-2023-53234 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:3761-1 · Vendor Advisory
• https://git.kernel.org/stable/c/8c1655600f4f2839fb844fe8c70b2b65fadc7a56 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50538 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-39683 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50410 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53625 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-53234 · Vendor Advisory
• https://git.kernel.org/stable/c/bf26b0e430ce34261f45959989edaf680b64d538 · Patch